Skills to master as a 30-something (or sooner)

Something about turning 30 years wise makes you pause and reflect on where you’ve been, and where you are going. While running a few miles today, I started a mental list of crucial skills I’ve mastered and some that I realize I will have to master quickly to be successful going forward. Have a look and let me know if you have any suggestions to add, and what are your top 3.